a-a a-b a-i a-t aaa aab aai aan aao aap aar aat aay ab- aba abb abi abn abo abp abr abt aby ai- aia aib aii ain aio aip air ait aiy an- ana anb ani ann ano anp anr ant any aoa aob aoi aon aoo aop aor aot ap- apa apb api apn apo app apr apt apy ar- ara arb ari arn aro arp arr art ary at- ata atb ati atn ato atp atr att ay- aya ayi ayn ayo ayp ayr ayt b-p baa bab bai ban bao bap bar bat bay bba bbb bbi bbn bbo bbp bbr bbt bby bi- bia bib bii bin bio bip bir bit biy bna bnb bni bnn bno bnp bnr bnt boa bob boi bon boo bop bor bot boy bpa bpb bpi bpn bpo bpp bpr bpt bpy bra brb bri brn bro brp brr brt bry bta btb bti btn bto btp btr btt bty by- bya byi byn byo byp byr byt ia- iaa iab iai ian iao iap iar iat iba ibb ibi ibn ibo ibp ibr ibt iby iia iib iii iin iio iip iir iit in- ina inb ini inn ino inp inr int iny io- ioa iob ioi ion ioo iop ior iot ipa ipb ipi ipn ipo ipp ipr ipt ipy ir- ira irb iri irn iro irp irr irt iry ita itb iti itn ito itp itt ity iya iyo iyr iyt iyy n-i naa nab nai nan nao nap nar nat nay nba nbb nbi nbn nbo nbp nbr nbt nia nib nii nin nio nip nir nit nna nnb nni nnn nno nnp nnt no- noa nob noi non noo nop nor not noy npa npb npi npn npo npp npr npt nra nrb nri nrn nro nrp nrr nrt nry nta ntb nti ntn nto ntp ntr ntt nya nyn nyo nyp nyt nyy o-i oaa oab oai oan oao oap oar oat ob- oba obb obi obn obo obp obr obt oby oia oib oii oin oio oip oir oit on- ona onb oni onn ono onp onr ont ony oo- ooa oob ooi oon ooo oop oor oot op- opa opb opi opn opo opp opr opt opy or- ora orb ori orn oro orp orr ort ory ot- ota otb oti otn oto otp otr ott oya oyi oyo p-p paa pab pai pan pao pap par pat pay pba pbb pbi pbn pbo pbp pbr pbt pby pia pib pii pin pio pip pir pit pn- pna pnb pni pnn pno pnp pnr pnt pny poa pob poi pon poo pop por pot poy ppa ppb ppi ppn ppo ppp ppr ppt pra prb pri prn pro prp prr prt pry pt- pta ptb pti ptn pto ptp ptr ptt pty py- pya pyb pyn pyo pyr pyt ra- raa rab rai ran rao rap rar rat ray rba rbb rbi rbn rbo rbp rbr rbt ria rib rii rin rio rip rir rit riy rna rnb rni rnn rno rnp rnr rnt rny roa rob roi ron roo rop ror rot roy rpa rpb rpi rpn rpo rpp rpr rpt rra rrb rri rrn rrp rrr rrt rta rtb rti rtn rto rtp rtr rtt rty ry- rya ryn ryo ryr ryy taa tab tai tan tao tap tar tat tay tba tbb tbi tbn tbo tbp tbr tbt tia tib tii tin tio tip tir tit tiy tna tnb tni tnn tno tnp tnr tnt to- toa tob toi ton too top tor tot toy tpa tpb tpi tpn tpo tpp tpr tpt tra trb tri trn tro trp trr trt try tta ttb tti ttn tto ttp ttr ttt tty tya tyn tyo typ tyr tyt yaa yab yai yan yao yap yar yat yay ybi ybp ybr yby yii yin yio yip yir yit yna ynn ynp yny yob yoi yon yoo yop yor yot yoy ypa ypo yra yrn yro yrp yrt yta ytn yto ytp ytr ytt yyb yyt yyy